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RRF File Name

RRF Column Name

RRF Definition

NCI Meta only

LexGrid Model Element

Comments

 

 

  Coding Scheme

 

codingScheme.representsVersion

 

 

 

 

 

codingScheme.codingScheme

hard coded in java file as "UMLS_SemNet"

 

 

 

 

codingScheme.formalName

hard coded in java file as "UMLS Semantic Network"

 

 

 

 

codingScheme.defaultLanguage

hard coded in java file as "en"

 

 

 

 

codingScheme.approxNumConcepts

hard coded in java file as

 

 

 

 

codingScheme.entityDescription

hard coded in java file as "The UMLS Semantic Network is one of three UMLS Knowledge Sources developed as part of the Unified Medical Language System project. The network provides a consistent categorization of all concepts represented in the UMLS Metathesaurus."

license.txt

 

 

 

codingScheme.copyright

Read from license.txt file or hard coded reference in java file

 

 

 

 

codingScheme.registeredName

hard coded in java file as "urn:lsid:nlm.nih.gov:semnet"

 

 

 

 

codingScheme.concepts.dc

hard coded in java file as "concepts"

 

 

 

 

codingScheme.relations.dc

hard coded in java file as "relations"

 

 

 

 

codingScheme.mappings.dc

hard coded in java file as "mappings"

 

 

 

 

codingScheme.localNameList

 

 

 

 

 

codingScheme.localNameList.

hard coded in java file as "UMLS_SemNet"

 

 

 

 

codingScheme.localNameList

 

 

 

 

 

codingScheme.localNameList.

 

 

 

 

 

codingScheme.source

 

 

 

 

 

codingScheme.source.content

 

codingScheme.localNameList  

 

codingScheme.localNameList.  

 

codingScheme.localNameList

 

codingScheme.localNameList.  

 

codingScheme.localNameList  

 

codingScheme.localNameList.

 

 

 

 

 

codingScheme.localNameList

 

 

 

 

 

codingScheme.localNameList.

 

 

 

 

 

codingScheme.localNameList

 

 

 

 

 

codingScheme.localNameList.

 

 

 

 

 

codingScheme.localNameList

 

 

 

 

 

codingScheme.localNameList.

 

 

 

 

 

mappings.supportedFormat

 

 

 

 

 

mappings.supportedFormat.localId

hard coded in java file as "text/plain"

 

 

 

 

mappings.supportedFormat.urn

hard coded in java file as "urn:oid:2.16.840.1.113883.6.10:text_plain"

 

 

 

 

mappings.supportedAssociation

 

SRDEF

RL

 

 

mappings.supportedAssociation.localId

 

 

 

 

 

mappings.supportedContext

 

 

 

 

 

mappings.supportedSource

 

 

 

 

 

mappings.supportedSource.localId

hard coded in java file as "NLM"

 

 

 

 

mappings.supportedSource.urn

hard coded in java file as "urn:lsid:nlm.nih.gov"

 

 

 

 

mappings.supportedHierarchy

 

 

 

 

 

mappings.supportedHierarchy.localId

hard coded in java file as "is_a"

 

 

 

 

mappings.supportedHierarchy.isForwardNavigable

hard coded as "true"

 

 

 

 

mappings.supportedHierarchy.rootCode

hard coded as "@"

 

 

 

 

mappings.supportedHierarchy.associationList

hard coded in java file as "hasSubtype" hasSubtype"

 

 

 

 

mappings.supportedAssociationQualifier

 

SRFLD

COL

 

 

mappings.supportedProperty

 

 

 

 

 

mappings.supportedProperty.localId

If SRDEF appears in the FIL column then this is treated a potential supported property and is entered in supported properties as such.

 

 

 

 

mappings.supportedProperty.urn

hard coded in java file as ""

 

 

 

 

mappings.supportedLanguage

 

 

 

 

 

mappings.supportedLanguage.localId

hard coded in java file as "en"

 

 

 

 

mappings.supportedLanguage.urn

hard coded in java file as "urn:oid:2.16.840.1.113883.6.84:en"

 

 

 

 

mappings.supportedCodingScheme

 

 

 

 

 

mappings.supportedCodingScheme.localId

hard coded in java file as "UMLS_SemNet"

 

 

 

 

mappings.supportedCodingScheme.urn

hard coded in java file as "urn:lsid:nlm.nih.gov:semnet"

 

 

 

 

mappings.supportedRepresentationalForm

 

 

 

 

 

mappings.supportedConceptStatus

 

 

 

 

 

mappings.supportedPropertyLink

 

 

 

 

 

mappings.supportedPropertyQualifier

 

 

 

 

 

mappings.supportedDataType

 

Concepts

UMLS SemNet Mapping

<big>Concepts</big>

RRF File Name

RRF Column Name

RRF Definition

NCI Meta only

LexGrid Model Element

comments

Comments

SRDEF

UI

 

 

concept.id(inherited from Entity)

 

SRDEF

STY/RL

 

 

concept.enitityDescription(inheritance path Entity->versionableAndDescribable) )

 

 

 

 

 

concept.conceptProperty

 

SRDEF

NH

 

 

concept.conceptProperty.text.content

 

 

 

 

 

concept.conceptProperty.format

hard coded in java file as "text/plain"

 

 

 

 

concept.conceptProperty.propertyName

hard coded in java file as "NH"

 

 

 

 

concept.conceptProperty.propertyId

Generated value for property using "P" concatenated with a steadily incremented numerical value.

 

 

 

 

concept.presentation

 

 

 

 

 

concept.presentation.propertyName (inherited from Property)

Hard coded in java file as "STY/RL" or "ABR"

 

 

 

 

concept.presentation.propertyId

Generated value for property using "P" concatenated with a steadily incremented numerical value.

SRDEF

STY/RL, ABR

 

 

concept.presentation.text.content

 

 

 

 

 

concept.presentation.format

hard coded in java file as "text/plain"

 

 

 

 

concept.presentation.isPreferred

hard coded in java file as true.

 

 

 

 

concept.definition.propertyName (inherited from Property)

Hard coded in java file as "DEF"

 

 

 

 

concept.definition.propertyId

Generated value for property using "P" concatenated with a steadily incremented numerical value.

SRDEF

DEF

 

 

concept.definition.text.content

 

 

 

 

 

concept.definition.format

hard coded in java file as "text/plain"

 

 

 

 

concept.definition.isPreferred

hard coded in java file as true.

 

 

 

 

concept.comment

 

SRDEF

EX

 

 

concept.comment.propertyName (inherited from Property)

Hard coded in java file as "EX"

 

 

 

 

concept.comment.text.content

 

 

 

 

 

concept.comment.format

hard coded in java file as "text/plain" plain"

 

 

 

 

concept.comment.propertyId

Generated value for property using "P" concatenated with a steadily incremented numerical value.

 

 

 

 

concept.instruction

 

 

 

 

 

concept.instruction.propertyName (inherited from Property)

Hard coded in java file as "UN"

SRDEF

UN

 

 

concept.instruction.text.content

 

 

 

 

 

concept.instruction.format

hard coded in java file as "text/plain"

 

 

 

 

concept.instruction.propertyId

Generated value for property using "P" concatenated with a steadily incremented numerical value.

Relations

UMLS SemNet Mapping

<big>Relations</big>

RRF File Name

RRF Column Name

RRF Definition

NCI Meta only

LexGrid Model Element

comments

Comments

SRSTR

RL

 

 

association.id (inherited from Entity)

In the case of RL value is "isa" the id is hard coded to hasSubtype. The direction of the association is also reversed

 

 

 

 

association.isTransitive

hard coded to true if the value of RL is "isa"

SRSTR

RL

 

 

association.forwardName

Reversed when value of RL is "isa"

SRSTR

STY/RL

 

 

associationInstance.sourceId

Reversed when value of RL is "isa"

SRSTR

STY/RL

 

 

associationTarget.targetId

 

SRDEF

RIN

 

 

association.reverseName

 

SRDEF

DEF

 

 

association.entityDescription.content (inheritance path for entityDescription is Entity->versionableAndDescribable)

When SRDEF value RT is "RL"

SRSTRE1

UI/STY(first argument)

 

 

associationInstance.sourceId

Reversed when value of RL is "isa"

SRSTRE1

UI/STY(2nd argument)

 

 

associationTarget.targetId

Reversed when value of RL is "isa"

UMLS Mapping

This section will be updated with the RRF loader enhancements implemented in LexEVS v5.1. Until then, go to the LexEVS 5.x Loader Source Mapping section of this guide.

Coding Scheme

UMLS Mapping

<big>Coding Scheme</big>

RRF File Name

RRF Column Name

RRF Definition

NCI Meta only

LexGrid Model Element

comments

Comments

MRSAB.RRF

SVER

Release date or version number of a source

 

codingScheme.representsVersion

 

MRSAB.RRF

SSN

Source short name

 

codingScheme.codingScheme

 

MRSAB.RRF

SON

Source Official Name

 

codingScheme.formalName

 

MRSAB.RRF

LAT

Language of Term(s)

 

codingScheme.defaultLanguage

 

MRSAB.RRF

TRF

Term frequency for a source

 

codingScheme.approxNumConcepts

 

MRSAB.RRF

SCIT

Source citation

 

codingScheme.entityDescription

inherits entityDescription from versionableAndDescribable

MRSAB.RRF

SCC

Content contact info for a source source

 

codingScheme.copyright

 

 

 

  codingScheme.copyright

 

codingScheme.registeredName

Pulled from iso mapping configuration file using method getISOString(RSAB from MRSAB.RRF)

MRDOC.RRF

EXPL

Detailed explanation

x

codingScheme.representsVersion

Where Dockey = "RELEASE" and value = "umls.release.name"

 

 

 

x

codingScheme.codingScheme

Hard coded in java file as "NCI MetaThesaurus"

 

 

 

x

codingScheme.formalName

Hard coded in java file as "NCI MetaThesaurus"

 

 

 

x

codingScheme.defaultLanguage

Hard coded in java file as "ENG"

MRCONSO.RRF

 

 

x

codingScheme.approxNumConcepts

Count of CODE value in MRCONSO.RRF

 

 

 

x

codingScheme.entityDescription

Hard coded in java file as "NCI MetaThesaurus loaded from RRF files."

 

 

 

x

codingScheme.copyright

Hard coded in java file as "Some material in the NCI Metathesaurus is from copyrighted sources of the respective copyright claimants. All sources appearing in the NCI Metathesaurus are licensed or authorized for NCI use. Users of the NCI Metathesaurus are responsible for compliance with the terms of these licenses and with any copyright restrictions and are referred to NCI Center of Bioinformatics for license terms and to the copyright notices appearing in the original sources, all of which are obtainable online by reference at http://ncimeta.nci.nih.gov/."

 

 

 

 

codingScheme.localNameList

Hard coded as constant in java file as "localName"

MRSAB.RRF

SON

Source Official Name

 

codingScheme.localNameList.

 

 

 

 

 

codingScheme.localNameList

Hard coded as constant in java file as "localName"

 

 

 

 

codingScheme.localNameList.

Pulled from iso mapping configuration file using method getISOString(RSAB from MRSAB.RRF)

 

 

 

 

codingScheme.source

Hard coded as constant in java file as "source"

MRDOC.RRF

EXPL

Detailed explanation

 

codingScheme.source.content

String concatenation of "UMLS-" and value of EXPL

 

 

 

x

codingScheme.localNameList

Hard coded as constant in java file as "localName"

 

 

 

x

codingScheme.localNameList.

Hard coded in java file as "NCI Thesaurus"

 

 

 

x

codingScheme.localNameList

Hard coded as constant in java file as "localName"

 

 

 

x

codingScheme.localNameList.

Hard coded in java file as "NCI_Thesaurus"

 

 

 

x

codingScheme.localNameList

Hard coded as constant in java file as "localName"

 

 

 

x

codingScheme.localNameList.

Hard coded in java file as "10001"

 

 

 

x

codingScheme.localNameList

Hard coded as constant in java file as "source"

 

 

 

x

codingScheme.localNameList.

Hard coded in java file as "RRF Files"

 

 

 

 

mappings.supportedFormat

Hard coded as constant in java file as "Format"

 

 

 

 

mappings.supportedFormat.localId

Hard coded as one of several constants in a java file

 

 

 

 

mappings.supportedAssociation

Hard coded as constant in java file as "Association"

MRREL.RRF

REL, RELA

Relationship, Relationship attribute

 

mappings.supportedAssociation.localId

 

 

 

 

 

mappings.supportedContext

Hard coded as constant in java file as "Context" May not be used in individual RRF load

 

 

 

 

mappings.supportedSource

Hard coded as constant in java file as "Source" May not be used in individual RRF load load

 

 

 

 

mappings.supportedHierarchy

Hard coded as constant in java file as "Hierarchy"

 

 

 

 

mappings.supportedAssociationQualifier

Hard coded as constant in java file as "AssociationQualifier"

 

 

 

 

mappings.supportedProperty

Hard coded as constant in java file as "Property"

 

 

 

 

mappings.supportedLanguage

Hard coded as constant in java file as "Language"

 

 

 

 

mappings.supportedCodingScheme

Hard coded as constant in java file as "CodingScheme"

 

 

 

 

mappings.supportedRepresentationalForm

Hard coded as constant in java file as "RepresentationalForm"

 

 

 

 

mappings.supportedConceptStatus

Hard coded as constant in java file as "ConceptStatus"

 

 

 

 

mappings.supportedPropertyLink

Hard coded as constant in java file as "PropertyLink"

 

 

 

 

mappings.supportedPropertyQualifier

Hard coded as constant in java file as "PropertyQualifier"

 

 

 

 

mappings.supportedDataType

Hard coded as constant in java file as "DataType"

Concepts

UMLS Mapping

<big>Concepts</big>

RRF File Name

RRF Column Name

RRF Definition

NCI Meta only

LexGrid Model Element

comments

Comments

MRCONSO.RRF

CODE

Unique Identifier or code for string in source

 

concept.conceptCode

 

MRCONSO.RRF

CUI

Unique identifier for concept

x

concept.conceptCode

 

 

 

 

 

concept.isActive

Hardcoded in parameter as true.

 

 

 

 

concept.conceptStatus

Hard coded as constant in java file as "Active"

 

concept.isAnonymous

Hardcoded in parameter as false.

as "Active"

 

 

 

 

concept.isAnonymous

Hardcoded in parameter as false.

MRCONSO.RRF

STR

String

 

concept.entityDescription

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MRCONSO.RRF

STR

String

concept.entityDescription

 

 

 

concept.conceptProperty.Format

Hard coded as constant in java file as "text/plain" or null

 

 

 

 

concept.conceptProperty.propertyName

May be hard coded as constant in java file as one of several properties.

 

 

 

 

concept.conceptProperty.usageContext

 

 

 

 

 

concept.conceptProperty.propertyId

Generated value for property using "P" concatenated with a steadily incremented numerical value.

 

 

 

 

concept.presentation.propertyId

Generated value for property textual presentation using "T" concatenated with a steadily incremented numerical value.

 

 

 

 

concept.comment.propertyId

Generated value for property comment using "C" concatenated with a steadily incremented numerical value.

 

 

 

 

concept.definition.propertyId

Generated value for property definition using "D" concatenated with a steadily incremented numerical value.

 

 

 

 

concept.instruction.propertyId

Generated value for property instruction using "I" concatenated with a steadily incremented numerical value.

MRCONSO.RRF

CUI

Unique identifier for concept

 

concept.conceptProperty.text.content.

 

 

 

 

 

concept.conceptProperty.propertyId

Generated value for property using "CUI" concatenated with a steadily incremented numerical value.

 

 

 

 

concept.conceptProperty.propertyName

hard coded as constant in java file as "UMLS_CUI"

 

 

 

 

concept.conceptProperty.propertyType

hard coded as constant in java file as "property"

 

 

 

 

concept.conceptProperty.format

left as null

MRSTY.RRF

STY

Semantic type

 

concept.conceptProperty.text.content

 

 

 

 

 

concept.conceptProperty.propertyId

Generated value for property using "SemType" concatenated with a steadily incremented numerical value.

 

 

 

 

concept.conceptProperty.propertyName

hard coded as constant in java file as "Semantic_Type"

 

 

 

 

concept.conceptProperty.propertyType

hard coded as constant in java file as "property"

 

 

 

 

concept.conceptProperty.format

Hard coded as constant in java file as "text/plain"

MRCONSO.RRF

LAT

Language of Term(s)

 

concept.conceptProperty.language

Logic of code simply selects the first definition in the source as the preferred source

MRCONSO.RRF

TS

Term status

 

concept.presentation.isPreferred

One or a combination of these RRF values determines whether a presentation is preferred: LAT, TS, STT, ISPREF, RANK.

MRCONSO.RRF

STT

String type

 

concept.presentation.isPreferred

One or a combination of these RRF values determines whether a presentation is preferred: LAT, TS, STT, ISPREF, RANK.

MRCONSO.RRF

ISPREF

Indicates whether AUI is preferred

 

concept.presentation.isPreferred

One or a combination of these RRF values determines whether a presentation is preferred: LAT, TS, STT, ISPREF, RANK.

MRRANK.RRF

RANK

Termgroup ranking

 

concept.presentation.isPreferred

One or a combination of these RRF values determines whether a presentation is preferred: LAT, TS, STT, ISPREF, RANK.

 

 

 

 

concept.presentation.isPreferred

The first presentation for each language is automatically marked as isPreferred="true" after using comparator to sort list of presentations using comparator to evaluate each presentation based on a combination of values from LAT, TS, STT, ISPREF, RANK.

MRDEF.RRF

DEF

Definition

 

concept.definition.text.content

 

 

 

 

 

concept.definition.isPreferred

Logic of code simply selects the first definition in the source as the preferred source

 

 

 

 

 

 

MRSAT.RRF

ATN

Attribute name

 

concept.conceptProperty.propertyType

Translated to a LexGrid property type. For values AN, CX, HN this property is typed as a "COMMENT" in LexGrid. For value EV this property is typed "PRESENTATION" This only occurs when the STYPE points to the CODE, SCUI or SDUI columns in MRREL.RRF or MRCONSO.RRF. If the STYPE points to SAUI then the values are loaded as property qualifiers.

MRSAT.RRF

ATV

Attribute value

 

concept.conceptProperty.propertyValue

 

MRSAT.RRF

ATN

Attribute name

 

concept.conceptProperty.propertyQualifier.propertyQualifierId

If the STYPE points to SAUI then the value is loaded as a property qualifier attribute

MRSAT.RRF

ATV

Attribute value

 

concept.conceptProperty.propertyQualifier.content

If the STYPE points to SAUI then the value is loaded as a property qualifier attribute

MRCONSO.RRF

SAB

 

x

concept.conceptProperty.source.content

 

 

 

 

x

concept.conceptProperty.propertyQualifier.propertyQualifierId

hard coded as constant in java file as "source-code"

MRCONSO.RRF

CODE

 

x

concept.conceptProperty.propertyQualifier.content

 

 

 

 

x

concept.conceptProperty.propertyQualifier.propertyQualifierId

hard coded as constant in java file as "AUI"

MRCONSO.RRF

AUI

 

x

concept.conceptProperty.propertyQualifier.content

 

 

 

 

 

concept.presentation.representationalForm

When ATN value is EV this presentation will be given a representationalForm of "Abbrev."

MRCONSO.RRF

TTY

Term type in source

 

concept.presentation.representationForm

When TTY value is FN then representationalForm is represented as "Full Form" Otherwise the representationalForm is the same as the TTY source (i.e. if TTY is PT then representationalForm is PT.) PT is one of the preferred presentations.

 

 

 

 

concept.conceptProperty.propertyQualifier.propertyQualifierId

hard coded as "HCD"

MRHIER.RRF

HCD

Source asserted hierarchical number or code for this atom in this context

 

concept.conceptProperty.propertyQualifier.content

This propertyQualifier is present when the HCD is populated in the the MRHIER file. The corresponding code and property for concept or code is qualified as a code or concept with a context derived heirarchy.

Relations

UMLS Mapping

RRF File Name

RRF Column Name

RRF Definition

NCI Meta only

LexGrid Model Element

comments

<big>Relations</big>

MRREL.RRF

CUI1

Unique identifier for first concept

MRREL.RRF

AUI1

Unique identifier for first atom

MRCONSO.RRF

CODE

Unique Identifier or code for string in source

ConceptReference.conceptCode (Model element is a ResolvedConceptReference with the value sourceOf attached to the appropriate AssociationList containing this particular REL or RELA association name.)

Mapping to the CODE depends upon the CUI or a combination of CUI and AUI values. If the CODE value is "NOCODE" then LexBIG concatenates "NOCODE" with a "-" and the CUI value. Target or source code value requires use of the DIR flag which indicates the directionality of the relationship in REL or RELA. CUI1 can be used as a pointer to the source CODE value if DIR equals Y, else CUI1 is the targetCode. Similarly, if an AUI exists AUI1 can be an indicator for CODE value to be either or source or target depending on the DIR flag.

MRREL.RRF

CUI2

Unique identifier for second concept

MRREL.RRF

AUI2

Unique identifier for second atom

MRCONSO.RRF

CODE

Unique Identifier or code for string in source

ConceptReference.conceptCode (Model element is a ResolvedConceptReference with the value targetOf attached to the appropriate AssociationList containing this particular REL or RELA association name.)

Mapping to the CODE depends upon the CUI or a combination of CUI and AUI values. If the CODE value is "NOCODE" then LexBIG concatenates "NOCODE" with a "-" and the CUI value. Target or source code value requires use of the DIR flag which indicates the directionality of the relationship in REL or RELA. CUI2 can be used as a pointer to the source CODE value if DIR equals Y, else CUI1 is the targetCode. Similarly, if an AUI exists AUI2 can be an indicator for CODE value to be either or source or target depending on the DIR flag.

MRREL.RRF

DIR

Source asserted directionality flag

The UMLS directional flag. Y indicates that this is the direction of the RELA relationship in its source; N indicates that it is not; otherwise indicates that it is not important or has not yet been determined. (If blank RELA, we interpret as 'N', based on empirical review of meta files).

 

MRREL.RRF

RELA

Relationship attribute

association.id (id inherited from Entity)

Source defined associations. If RELA value is "inverse_isa" then it is changed to "hasSubtype." All others mapped as defined in source.

 

MRREL.RRF

REL

Relationship

association.id (id inherited from Entity)

UMLS defined associations

 

 

MRSAT.RRF

METAUI

Metathesaurus asserted unique identifier

Presence of RUI in MRSAT.RRF METAUI column indicates the association defined in MRREL has an association qualifier. Currently only MedDRA uses these.

MRSAT.RRF

ATN

AssociatedConcept.nameAndValueList.name

MRSAT.RRF

ATV

AssociationQualification.nameAndValueList.content

 

AssociatedConcept.nameAndValueList.name

qualifier name is hard coded to "HCD" This association qualifier is attached to an association when the HCD field in MRHIER.RRF is populated. Associations are identified by evaluating a structured series of AUI's that describe the path to root (PTR field in MRHIER) Once these associations are identified they have and association qualifier attached to them with the value of the HCD loaded as the qualifier.

MRHIER.RRF

HCD

AssociationQualification.nameAndValueList.content

MRSAB.RRF

SSN

Source short name

association.codingSchemeId (Inherited from Entity)

MRREL.RR

REL or RELA

Relationship or Relationship attribute

association.forwardName

unqualified REL or RELA value (inverse_isa remains the same)

MRDOC.RRF

EXPL

Detailed explanation

association.reverseName

Where DOCKEY in MRDOC equals REL or RELA and value is the association name and TYPE is REL or RELA name prepended to "_inverse".

 

association.inverse

Hard coded as a blank string.

 

association.isAntiReflexive

hard coded to null.

 

association.isAntiSymmetric

hard coded to null.

 

association.isAntiTransitive

hard coded to null.

 

association.isAntiTransitive

hard coded to null.

 

association.isNavigable

hard coded as Boolean with value true.

 

association.isReflexive

hard coded to null.

 

association.isReverseFunctional

hard coded to null.

 

association.isSymmetric

hard coded to null.

MRREL.RRF

SAB, REL, RELA

Source abbreviation

association.isTransitive

True when the name of the association can be mapped to a source defined in the SAB attribute of MRREL.RRF. Not the SAB value itself, but extrapolated from it using SAB to REL, RELA relationship.

 

association.isTranslationAssociation

hard coded to null.

 

association.targetCodingScheme

hard coded to null.

 

association.entityDescription.content (inheritance path for entityDescription is Entity->versionableAndDescribable)

Hard coded to: "UMLS-defined relationships"

 

 

relations.dc

If REL, this is hard coded as "UMLS-Relations" if RELA then it is hard coded to "Relations"

MRREL.RRF

REL, RELA

x

propertyLink.link

This is a link established when the MRREL.RRF file contains a relationship where the CUI is related to itself. Under these conditions the relationship is mapped as a property link with the MRREL defined relationship mapped as the link value.

 

x

propertyLink.sourceProperty

Generated as a propertyId for concept, ex: "T-10" This is retrieved based on the AUI value in MRCONSO.RRF from the entityPropertyMultiAttrib table where the AUI equals the attributeValue column.

 

x

propertyLink.targetProperty

Generated as a propertyId for concept, ex: "T-10" This is retrieved based on the AUI value in MRCONSO.RRF from the entityPropertyMultiAttrib table where the AUI equals the attributeValue column.

...